"Wait, are you human? And why are our clothes so similar?" she said to Finn.
"Yes, I am human. And I don't quite know, it is probably a coincedence. My name is Finn, what is yours?" he said. Fionna realized she was not the only human as well.
"My name is Fionna. Our names are similar too..." They were both as confused as each other.
"How did you get here?" asked Finn.
"Well, I remember Cake and I-" Fionna was cut off by Jake.
"Who's Cake?" he asked.
Fionna replied, "She is my sister and best friend." Both Finn and Jake were amazed by how similar Finn and Fionna were.
"Finn is my best friend and brother!" exclaimed Jake. The three of them were all amazed by then.
"So, how did you get here?" said Finn.
Fionna struggled to remember. "I was at home with Cake and I remember a large black portal opening up on the floor in front of us and falling in. I landed in that cage over there, and Cake was gone. Then you came and saved me from the Ice Que-" she stumbled over the wrong name- "-I mean King, after I screamed for help, and here I am."
Meanwhile, Cake was puzzled - she had just fallen into a portal, but she was still right there in her and Fionna's house, and Fionna was gone.
"Uh oh," she said to herself. She ran out the door, grew to a ginormous size, and looked around for Fionna, calling her name. Fionna did not know where her house was, after falling into that portal, so she asked Finn and Jake if she could crash at their place. Finn gladly accepted while Jake just casually said OK.
When they were walking up to the treehouse, Fionna had a sudden feeling of deja vu.
"Hey, this looks exactly like my house!" Fionna said.
"Hm, weird." said Finn. Him and Jake were, yet again, puzzled. When Fionna got inside, she did the same things as Finn did - put her backpack on the kitchen table, kicked her shoes off near the door, and just sat on the couch.
"We are so similar, it is actually becoming a bit creepy." said Finn. Fionna nodded in agreement.
10 minutes after they got home, Cake walked in and was not suprised to see Fionna.
"Fionna, you're back! I was so worried about what had hap-" Cake stood wide eyed with her mouth agape. She saw a human boy who looked exactly like Fionna, and a dog, who was stretching his arm to turn on the TV, like how Cake does. She said quietly while pointing to Finn,
"Y-y-y-ou l-look exactly like F-f-fionna..."
"Yeah, we have noticed that." said both Finn and Fionna in unison. They looked at each other and blushed.
"Well, you two boys better get out of my house!" Cake shouted fiercely.
"Your house? This is Jake and I's house!" exclaimed Finn. Cake was very confused, just like the rest of them.
"Well, I guess we have got to share the house until me and Fionna can get back to our house, if we can find it." said Cake.
When day turned to night, Fionna got onto "her" bed, and immediately fell asleep, forgetting she was at Finn and Jake's house, because it was so similar. Finn walked into his room with his eyes closed, too tired to open them, and flopped down on his bed, right next to Fionna, not realizing she was there. Fionna moved closer to Finn(while still asleep) and Finn wrapped his arm around Fionna(also still asleep). Jake walked into the room to get in his drawer, and saw Finn and Fionna, cuddling each other while sound asleep. He ran downstairs to get Cake, and brought her up. When they went up, Jake pointed at them and had a look of an unidentified emotion. She looked at them and said a breif "awww" to herself.
"Well, you should let them sleep." Cake said as she went back downstairs and onto the couch. Jake sighed, shrugged, and went into his drawer.
A/N: To anyone who could possible be reading this(Hey, Nick), that was a bit of a long chapter, in my opinion. I think I should keep it that way as best as possible.